/**
 ******************************************************************************
 * @file    stm32f1xx_hal_gpio_ex.c
 * @author  MCD Application Team
 * @brief   GPIO Extension HAL module driver.
 *         This file provides firmware functions to manage the following
 *          functionalities of the General Purpose Input/Output (GPIO) extension peripheral.
 *           + Extended features functions
 *
 ******************************************************************************
 * @attention
 *
 * Copyright (c) 2016 STMicroelectronics.
 * All rights reserved.
 *
 * This software is licensed under terms that can be found in the LICENSE file
 * in the root directory of this software component.
 * If no LICENSE file comes with this software, it is provided AS-IS.
 *
 ******************************************************************************
 @verbatim
 ==============================================================================
 ##### GPIO Peripheral extension features #####
 ==============================================================================
 [..] GPIO module on STM32F1 family, manage also the AFIO register:
 (+) Possibility to use the EVENTOUT Cortex feature

 ##### How to use this driver #####
 ==============================================================================
 [..] This driver provides functions to use EVENTOUT Cortex feature
 (#) Configure EVENTOUT Cortex feature using the function HAL_GPIOEx_ConfigEventout()
 (#) Activate EVENTOUT Cortex feature using the HAL_GPIOEx_EnableEventout()
 (#) Deactivate EVENTOUT Cortex feature using the HAL_GPIOEx_DisableEventout()

 @endverbatim
 ******************************************************************************
 */

/* Includes ------------------------------------------------------------------*/
#include "stm32f1xx_hal.h"

/** @addtogroup STM32F1xx_HAL_Driver
 * @{
 */

/** @defgroup GPIOEx GPIOEx
 * @brief GPIO HAL module driver
 * @{
 */

#ifdef HAL_GPIO_MODULE_ENABLED

/** @defgroup GPIOEx_Exported_Functions GPIOEx Exported Functions
 * @{
 */

/** @defgroup GPIOEx_Exported_Functions_Group1 Extended features functions
 *  @brief    Extended features functions
 *
 @verbatim
 ==============================================================================
 ##### Extended features functions #####
 ==============================================================================
 [..]  This section provides functions allowing to:
 (+) Configure EVENTOUT Cortex feature using the function HAL_GPIOEx_ConfigEventout()
 (+) Activate EVENTOUT Cortex feature using the HAL_GPIOEx_EnableEventout()
 (+) Deactivate EVENTOUT Cortex feature using the HAL_GPIOEx_DisableEventout()

 @endverbatim
 * @{
 */

/**
 * @brief  Configures the port and pin on which the EVENTOUT Cortex signal will be connected.
 * @param  GPIO_PortSource Select the port used to output the Cortex EVENTOUT signal.
 *   This parameter can be a value of @ref GPIOEx_EVENTOUT_PORT.
 * @param  GPIO_PinSource Select the pin used to output the Cortex EVENTOUT signal.
 *   This parameter can be a value of @ref GPIOEx_EVENTOUT_PIN.
 * @retval None
 */
void HAL_GPIOEx_ConfigEventout(uint32_t GPIO_PortSource,
		uint32_t GPIO_PinSource) {
	/* Verify the parameters */
	assert_param(IS_AFIO_EVENTOUT_PORT(GPIO_PortSource));
	assert_param(IS_AFIO_EVENTOUT_PIN(GPIO_PinSource));

	/* Apply the new configuration */
	MODIFY_REG(AFIO->EVCR, (AFIO_EVCR_PORT) | (AFIO_EVCR_PIN),
			(GPIO_PortSource) | (GPIO_PinSource));
}

/**
 * @brief  Enables the Event Output.
 * @retval None
 */
void HAL_GPIOEx_EnableEventout(void) {
	SET_BIT(AFIO->EVCR, AFIO_EVCR_EVOE);
}

/**
 * @brief  Disables the Event Output.
 * @retval None
 */
void HAL_GPIOEx_DisableEventout(void) {
	CLEAR_BIT(AFIO->EVCR, AFIO_EVCR_EVOE);
}

/**
 * @}
 */

/**
 * @}
 */

#endif /* HAL_GPIO_MODULE_ENABLED */

/**
 * @}
 */

/**
 * @}
 */

